package practice.observer;

/**
 * @ClassName Client
 * @Description 只是默写一遍，当做练习，不做任何参考
 * @Author yaoqiang
 * @Date 2020/9/7 9:14
 * @Version 1.0
 */
public class Client {
    public static void main(String[] args) {
        Site site = new Site();
        Station station = new Station();
        station.addObs(site);
        station.update(12);
    }
}
